Just the basic O2. Made in the US though. It really looks like the Massdrop O2SDAC combo is a great value.
Schiit combo will be $200.
I'm using my dragonfly black for both mobile dac/amp and on my desk top as a dac with my littledot1+. I went strait to the voskhod tubes and just changed the opamp. Sweet with my HD 6XX. I've joined the SDAC drop, because the DAC has a good pedigree and a reasonable price.